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السجلات المعروضة 1 -- 10 من 16
Performance enhancement of cognitive relay networks using regression functions
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Institute of Electrical and Electronics Engineers Inc.
, 2016 , Conference Paper)
In a spectrum sharing relay-aided secondary network, the design objective shifts from minimizing the violation of the primary system constraints when using the outdated channel state information (CSI), to making the best ...
Secure DoF for the MIMO MAC: The case of knowing eavesdropper's channel statistics only
(
Institute of Electrical and Electronics Engineers Inc.
, 2019 , Conference Paper)
Physical layer security has attracted research attention as a means to achieve secure communication without the need for complicated upper layer encryption techniques. The secure degrees of freedom (SDoF) of various networks ...
Sparsity-aware narrowband interference mitigation and subcarriers selection in OFDM-based cognitive radio networks
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Institute of Electrical and Electronics Engineers Inc.
, 2016 , Conference Paper)
In this paper, the performance of an orthogonal frequency division multiplexing overlay cognitive radio network with subcarrier selection schemes is investigated. We propose three subcarrier selection techniques that reduce ...
Sparsity-aware Multiple Relay Selection In Large Decode-and-forward Relay Networks
(
Hamad bin Khalifa University Press (HBKU Press)
, 2014 , Conference Paper)
Cooperative communication is a promising technology that has attracted significant attention recently thanks to its ability to achieve spatial diversity in wireless networks with only single-antenna nodes. The different ...
Secrecy for MIMO wiretap and MIMO broadcast channels with fading eavesdroppers: CSI does not increase the secure DoF
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Institute of Electrical and Electronics Engineers Inc.
, 2015 , Conference Paper)
We investigate the secure degrees of freedom (SDoF) of the wiretap and the K user Gaussian broadcast channels with multiple antennas at the transmitter, the legitimate receivers and an unknown number of eavesdroppers each ...
Trading wireless information and power transfer: Relay selection to minimize the outage probability
(
Institute of Electrical and Electronics Engineers Inc.
, 2014 , Conference Paper)
This paper studies the outage probability minimization problem for a multiple relay network with energy harvesting constraints. The relays are hybrid nodes used for simultaneous wireless information and power transfer from ...
Energy efficient mobile relay selection for two-hop wireless networks
(
IEEE Computer Society
, 2014 , Conference Paper)
In this paper, we propose a relay selection strategy for randomly distributed multiple relays. A single relay is selected for transmitting signal from a fixed source to a fixed destination which requires minimum total ...
On the Ergodic Secrecy Rate of Massive MIMO Transmission with Partial Legitimate User CSI
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Institute of Electrical and Electronics Engineers Inc.
, 2019 , Conference Paper)
In this paper, we consider the downlink transmission over a single-cell massive multiple-input-multiple-output (MIMO) system in the presence of multiple single-antenna eavesdroppers (massive MIMOME). We concentrate on the ...
Performance analysis of relay selection schemes in underlay cognitive networks with imperfect channel state information
(
IEEE Computer Society
, 2013 , Conference Paper)
Cognitive Radio (CR) aims to improve spectrum utilization by allowing unlicensed users to access the licensed spectrum and to coexist with primary user (PU) while respecting the PU's restrictions. An interesting case to ...
Sequential random selection relaying for energy efficient wireless sensor networks
(
IEEE
, 2010 , Conference Paper)
In a wireless sensor network with relaying capability, intermediate relay nodes are with limited energy budget. To maximize lifetime of relay nodes, selective relay strategies, requiring full channel state information ...